Which OSX Do i use on a Mac Pro 2009

EirikStrand1996

macrumors newbie
Original poster
May 2, 2017
15
0
hi, I just bought a Mac Pro 2009 2.66 (i think) with 3 Gb ddr3 ram and the stock graphic card.
I know the graphic card is not working but thats ok since i have a 660Ti laying around i can use.
Now the problem is the Mac does not have a HHD or / SSD so i need to buy one, also okey, was planing on doing it anyway, same with more ram.
but am not sure how to download an old OSX because i need and older i think..? well am not sure about this part. so... can anybody tell me how to proceed from her
 

DeltaMac

macrumors G4
Jul 30, 2003
10,342
2,739
Delaware
Also, Apple never has sold Lion on a DVD. You purchase Lion from that linked page, and Apple sends you a redemption code that you use in the App Store to download the Lion installer.
 

Synchro3

macrumors 68000
Jan 12, 2014
1,979
835
GTX 660 Ti needs at least OS X Mountain Lion 10.8.3. You will have no boot screen with a PC GTX 660 Ti.

If you would have an Apple graphics card or EFI-flashed card you could install OS X 10.6.8 from DVD (an run without graphics acceleration), and upgrade over the App store to OS X El Capitan. But you don't have an EFI Card, so no chance to install 10.6.8 from DVD.

- Ask a friend for an SSD with Mountain Lion, Mavericks or El Capitan already installed, install the SSD in the Mac Pro, do the Mac Pro firmware upgrade 4,1 -> 5,1*, and you are able to install the newest MacOS Sierra.

* I forgot: Mac Pro firmware upgrade only possible with an EFI graphics card.

- Upgrade RAM at least to 8 GB
 
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MIKX

macrumors 68000
Dec 16, 2004
1,756
647
Aussie in Japan
I use Mavericks 10.9.5. It seems the most stable for my requirements but I recently installed Yosemite on a spare drive as it loads my ASM 1042 USB 3.1 card natively.
 
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